opening

opening definition - medical

o·pen·ing (ōˈpə-nĭng)

noun
  1. The act or an instance of becoming unobstructed or of being made to open.
  2. An open space that serves as a passage or gap.
  3. A breach or aperture.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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